The subname for this cache is " the Currency Exchange". If you have any foreign money laying around or stuffed in a drawer somewhere, please feel free to add some to the cache. At ground zero, you will find a simple field puzzle to solve that will provide you with the lock combination. Once you have the code, you can unlock the ammo box full of swag and the logbook.
Have fun and if you enjoyed this cache, I do appreciate when a favorite point is added letting other cachers know this was a unique and fun cache to visit.